gunshack has 26" 1:8 savage prefits in varmint contours. Heavier than you want, yes, but thats a VERY hard prefit to find, ask me how I know. I got one and am having my smith cut it down to 20". Good luck to you! Message me if you want to chat bout our similar builds.
Hard to find pre-fit? In stock ready to deliver, maybe. I just ordered mine from X-Caliber and it took a little over 8 weeks to get. It's $266 to by your ER Shaw barrel from gunshak, and $268 for a 20-22" stainless sporter direct from ER Shaw.